A Westpac spokesperson said the changes reflected the continued volatility in the cost of funding lending to customers.
Westpac also lifted a swath of term deposit rates from six months to five years. Its two-year term deposit was bumped up 60bp to 6 per cent. The 18-month and three-year rates rose 30bp to 5.80 per cent and 5.50 per cent respectively.
Reserve Bank governor Adrian Orr told the Herald earlier this week he was comfortable with the extent to which banks had been raising their mortgage rates, noting banks had been responding to rising wholesale funding costs.